Postglacial viability and colonization in North America’s ice-free corridor

  title={Postglacial viability and colonization in North America’s ice-free corridor},
  author={Mikkel Winther Pedersen and Anthony Ruter and Charles Earl Schweger and Harvey Friebe and Richard A. Staff and Kristian Kjellerup Kjeldsen and Marie Lisandra Zepeda Mendoza and Alwynne B Beaudoin and Cynthia Zutter and Nicolaj Krog Larsen and Ben A. Potter and Rasmus Nielsen and Rebecca A. Rainville and Ludovic Orlando and David J. Meltzer and Kurt H. Kj{\ae}r and Eske Willerslev},
During the Last Glacial Maximum, continental ice sheets isolated Beringia (northeast Siberia and northwest North America) from unglaciated North America. By around 15 to 14 thousand calibrated radiocarbon years before present (cal. kyr bp), glacial retreat opened an approximately 1,500-km-long corridor between the ice sheets. It remains unclear when plants and animals colonized this corridor and it became biologically viable for human migration. We obtained radiocarbon dates, pollen… 

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